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RU2014143039A - DEVICE OF MEDICAL VISUALIZATION - Google Patents

DEVICE OF MEDICAL VISUALIZATION Download PDF

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Publication number
RU2014143039A
RU2014143039A RU2014143039A RU2014143039A RU2014143039A RU 2014143039 A RU2014143039 A RU 2014143039A RU 2014143039 A RU2014143039 A RU 2014143039A RU 2014143039 A RU2014143039 A RU 2014143039A RU 2014143039 A RU2014143039 A RU 2014143039A
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Prior art keywords
coil
inverter
medical imaging
semiconductor
signal
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RU2014143039A
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Russian (ru)
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RU2611598C2 (en
Inventor
Хелмют МРЮСЕК
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Конинклейке Филипс Н.В.
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/10—Power supply arrangements for feeding the X-ray tube
    • H05G1/20—Power supply arrangements for feeding the X-ray tube with high-frequency AC; with pulse trains
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/265—Measurements of current, voltage or power
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/4815—Resonant converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

1. Устройство (10) медицинской визуализации, содержащее:инвертор (12) с полупроводниковыми переключателями (26) для генерации переменного напряжения, подлежащего подаче на нагрузку (20, 22);катушку (32), индуктивно связанную с проводником (34, 70) инвертора (12), который соединен с полупроводниковым переключателем (26) инвертора (12); исхему (60) мониторинга для мониторинга тока в полупроводниковом переключателе (26) с использованием сигнала от катушки (32);при этом катушка (32) индуктивно связана с проводником (34), соединенным посредством монтажных проводов с полупроводниковым переключателем (26).2. Устройство (10) медицинской визуализации по п. 1,в котором катушка (32) представляет собой тороидальную катушку, окружающую проводник (34, 70).3. Устройство (10) медицинской визуализации по п. 1 или 2,в котором полупроводниковые переключатели (26) содержат IGBT,при этом катушка (32) индуктивно связана с проводником (36, 70), соединенным с эмиттером (46) или коллектором (48) IGBT (26).4. Устройство (10) медицинской визуализации по п. 1 или 2,в котором инвертор (12) содержит плечо (14) инвертора с по меньшей мере двумя полупроводниковыми переключателями (26);при этом катушка (32) связана с входом (34) плеча (14) инвертора.5. Устройство (10) медицинской визуализации по п. 1 или 2,в котором катушка (32) для мониторинга тока индуктивно связана с каждым плечом (14) инвертора (12).6. Устройство (10) медицинской визуализации по п. 1 или 2,дополнительно содержащее:полупроводниковый модуль (30), который вмещает по меньшей мере один полупроводниковый переключатель (26);при этом катушка (32) индуктивно связана с проводником (70) на входе (34) полупроводникового модуля (30).7. Устройство (10) медицинской визуализации по п. 6,в котором линия (76) питания полупроводникового модуля (30) соединена с полупроводниковым модулем (30) с использовани1. A medical imaging device (10), comprising: an inverter (12) with semiconductor switches (26) for generating an alternating voltage to be applied to a load (20, 22); a coil (32) inductively coupled to a conductor (34, 70) an inverter (12), which is connected to the semiconductor switch (26) of the inverter (12); a monitoring circuit (60) for monitoring current in a semiconductor switch (26) using a signal from a coil (32); in this case, the coil (32) is inductively connected to a conductor (34) connected via wiring wires to a semiconductor switch (26) .2. A medical imaging device (10) according to claim 1, wherein the coil (32) is a toroidal coil surrounding the conductor (34, 70). 3. A medical imaging device (10) according to claim 1 or 2, in which the semiconductor switches (26) comprise an IGBT, wherein the coil (32) is inductively coupled to a conductor (36, 70) connected to an emitter (46) or collector (48) IGBT (26) .4. A medical imaging device (10) according to claim 1 or 2, in which the inverter (12) comprises an inverter arm (14) with at least two semiconductor switches (26); wherein, the coil (32) is connected to the input (34) of the arm ( 14) inverter. 5. A medical imaging device (10) according to claim 1 or 2, in which a coil (32) for monitoring current is inductively coupled to each arm (14) of the inverter (12) .6. A medical imaging device (10) according to claim 1 or 2, further comprising: a semiconductor module (30) that accommodates at least one semiconductor switch (26); while the coil (32) is inductively coupled to a conductor (70) at the input ( 34) semiconductor module (30) .7. The medical imaging device (10) according to claim 6, wherein the power line (76) of the semiconductor module (30) is connected to the semiconductor module (30) using

Claims (14)

1. Устройство (10) медицинской визуализации, содержащее:1. The device (10) medical imaging, containing: инвертор (12) с полупроводниковыми переключателями (26) для генерации переменного напряжения, подлежащего подаче на нагрузку (20, 22);an inverter (12) with semiconductor switches (26) to generate an alternating voltage to be applied to the load (20, 22); катушку (32), индуктивно связанную с проводником (34, 70) инвертора (12), который соединен с полупроводниковым переключателем (26) инвертора (12); иa coil (32) inductively coupled to the conductor (34, 70) of the inverter (12), which is connected to the semiconductor switch (26) of the inverter (12); and схему (60) мониторинга для мониторинга тока в полупроводниковом переключателе (26) с использованием сигнала от катушки (32);a monitoring circuit (60) for monitoring current in a semiconductor switch (26) using a signal from a coil (32); при этом катушка (32) индуктивно связана с проводником (34), соединенным посредством монтажных проводов с полупроводниковым переключателем (26).in this case, the coil (32) is inductively coupled to a conductor (34) connected via mounting wires to a semiconductor switch (26). 2. Устройство (10) медицинской визуализации по п. 1,2. The device (10) medical imaging according to claim 1, в котором катушка (32) представляет собой тороидальную катушку, окружающую проводник (34, 70).in which the coil (32) is a toroidal coil surrounding the conductor (34, 70). 3. Устройство (10) медицинской визуализации по п. 1 или 2,3. The device (10) medical imaging according to claim 1 or 2, в котором полупроводниковые переключатели (26) содержат IGBT,in which the semiconductor switches (26) contain IGBT, при этом катушка (32) индуктивно связана с проводником (36, 70), соединенным с эмиттером (46) или коллектором (48) IGBT (26).wherein the coil (32) is inductively coupled to a conductor (36, 70) connected to the emitter (46) or collector (48) of the IGBT (26). 4. Устройство (10) медицинской визуализации по п. 1 или 2,4. The device (10) medical imaging according to claim 1 or 2, в котором инвертор (12) содержит плечо (14) инвертора с по меньшей мере двумя полупроводниковыми переключателями (26);wherein the inverter (12) comprises an inverter arm (14) with at least two semiconductor switches (26); при этом катушка (32) связана с входом (34) плеча (14) инвертора.wherein the coil (32) is connected to the input (34) of the arm (14) of the inverter. 5. Устройство (10) медицинской визуализации по п. 1 или 2,5. The device (10) medical imaging according to claim 1 or 2, в котором катушка (32) для мониторинга тока индуктивно связана с каждым плечом (14) инвертора (12).in which a coil (32) for monitoring current is inductively coupled to each arm (14) of the inverter (12). 6. Устройство (10) медицинской визуализации по п. 1 или 2,6. The device (10) medical imaging according to claim 1 or 2, дополнительно содержащее:optionally containing: полупроводниковый модуль (30), который вмещает по меньшей мере один полупроводниковый переключатель (26);a semiconductor module (30) that accommodates at least one semiconductor switch (26); при этом катушка (32) индуктивно связана с проводником (70) на входе (34) полупроводникового модуля (30).wherein the coil (32) is inductively coupled to a conductor (70) at the input (34) of the semiconductor module (30). 7. Устройство (10) медицинской визуализации по п. 6,7. The device (10) medical imaging according to claim 6, в котором линия (76) питания полупроводникового модуля (30) соединена с полупроводниковым модулем (30) с использованием механического соединителя (70);in which the power line (76) of the semiconductor module (30) is connected to the semiconductor module (30) using a mechanical connector (70); при этом механический соединитель (70) является электрически проводящим, а катушка (32) расположена вокруг механического соединителя (70).wherein the mechanical connector (70) is electrically conductive, and the coil (32) is located around the mechanical connector (70). 8. Устройство (10) медицинской визуализации по п. 7,8. The device (10) medical imaging according to claim 7, в котором катушка (32) расположена между линией (76) питания и входом (34) полупроводникового модуля (30), и механический соединитель (70) крепит катушку (32) к полупроводниковому модулю (30).in which a coil (32) is located between the power line (76) and the input (34) of the semiconductor module (30), and a mechanical connector (70) secures the coil (32) to the semiconductor module (30). 9. Устройство (10) медицинской визуализации по п. 1 или 2,9. The device (10) medical imaging according to claim 1 or 2, в котором схема (60) мониторинга содержит интегратор (62) для интегрирования сигнала от катушки (32); и/илиin which the monitoring circuit (60) comprises an integrator (62) for integrating the signal from the coil (32); and / or схема (60) мониторинга содержит блок (64) сравнения для the monitoring circuit (60) comprises a comparison unit (64) for сравнения интегрированного сигнала с опорным сигналом (VRef).comparing the integrated signal with the reference signal (V Ref ). 10. Устройство (10) медицинской визуализации по п. 1 или 2,10. The device (10) medical imaging according to claim 1 or 2, дополнительно содержащее:optionally containing: резонансную схему (16), соединенную с выходом (38) инвертора (12).a resonant circuit (16) connected to the output (38) of the inverter (12). 11. Устройство (10) медицинской визуализации по п. 1 или 2,11. The device (10) medical imaging according to claim 1 or 2, дополнительно содержащее:optionally containing: трансформатор (18) для преобразования переменного напряжения от инвертора (12) в первое более высокое переменное напряжение; иa transformer (18) for converting the alternating voltage from the inverter (12) into a first higher alternating voltage; and генератор (20) высокого напряжения для генерации второго более высокого напряжения, подлежащего подаче на рентгеновскую трубку (22).a high voltage generator (20) for generating a second higher voltage to be supplied to the x-ray tube (22). 12. Способ работы устройства (10) медицинской визуализации, содержащий этапы:12. The method of operation of the device (10) medical imaging, comprising the steps of: переключения полупроводниковых переключателей (26) инвертора (12) устройства (10) медицинской визуализации для генерации переменного напряжения, подлежащего подаче на нагрузку;switching semiconductor switches (26) of the inverter (12) of the medical imaging device (10) to generate an alternating voltage to be applied to the load; генерации сигнала в катушке (32), индуктивно связанной с проводником (34, 70) инвертора (12), соединенного посредством монтажных проводов с полупроводниковым переключателем (26) инвертора (12); иgenerating a signal in a coil (32) inductively coupled to a conductor (34, 70) of the inverter (12) connected via wiring wires to the semiconductor switch (26) of the inverter (12); and определения токового сигнала по сигналу катушки (32), причем токовый сигнал указывает ток в полупроводниковом переключателе (26).determining the current signal from the signal of the coil (32), and the current signal indicates the current in the semiconductor switch (26). 13. Способ по п. 12,13. The method according to p. 12, в котором полупроводниковые переключатели (26) переключаются in which the semiconductor switches (26) are switched так, что частота переменного напряжения выше 10 кГц; и/илиso that the frequency of the alternating voltage is higher than 10 kHz; and / or полупроводниковые переключатели (26) переключаются так, что инвертор (12) работает в резонансном режиме.semiconductor switches (26) are switched so that the inverter (12) operates in resonant mode. 14. Способ по п. 12 или 13, дополнительно содержащий этапы:14. The method of claim 12 or 13, further comprising the steps of: определения токового сигнала посредством интегрирования сигнала от катушки (32);determining the current signal by integrating the signal from the coil (32); обнаружения максимального тока посредством сравнения интегрированного сигнала с опорным сигналом (VRef). detecting the maximum current by comparing the integrated signal with the reference signal (V Ref ).
RU2014143039A 2012-03-26 2013-03-06 Medical imaging device RU2611598C2 (en)

Applications Claiming Priority (3)

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US201261615450P 2012-03-26 2012-03-26
US61/615,450 2012-03-26
PCT/IB2013/051785 WO2013144742A1 (en) 2012-03-26 2013-03-06 Medical imaging device

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US (1) US9788403B2 (en)
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EP2831992B1 (en) 2018-01-31
EP2831992A1 (en) 2015-02-04
WO2013144742A1 (en) 2013-10-03
US9788403B2 (en) 2017-10-10
JP6318141B2 (en) 2018-04-25
CN104221270A (en) 2014-12-17
JP2015517182A (en) 2015-06-18
US20150030134A1 (en) 2015-01-29
RU2611598C2 (en) 2017-02-28

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